splashitem.cpp

/******************************************************************************** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).** Contact: Nokia Corporation (qt-info@nokia.com)**** This file is part of the examples of the Qt Toolkit.**** $QT_BEGIN_LICENSE:LGPL$** Commercial Usage** Licensees holding valid Qt Commercial licenses may use this file in** accordance with the Qt Commercial License Agreement provided with the** Software or, alternatively, in accordance with the terms contained in** a written agreement between you and Nokia.**** GNU Lesser General Public License Usage** Alternatively, this file may be used under the terms of the GNU Lesser** General Public License version 2.1 as published by the Free Software** Foundation and appearing in the file LICENSE.LGPL included in the** packaging of this file. Please review the following information to** ensure the GNU Lesser General Public License version 2.1 requirements** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.**** In addition, as a special exception, Nokia gives you certain** additional rights. These rights are described in the Nokia Qt LGPL** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this** package.**** GNU General Public License Usage** Alternatively, this file may be used under the terms of the GNU** General Public License version 3.0 as published by the Free Software** Foundation and appearing in the file LICENSE.GPL included in the** packaging of this file. Please review the following information to** ensure the GNU General Public License version 3.0 requirements will be** met: http://www.gnu.org/copyleft/gpl.html.**** If you are unsure which license is appropriate for your use, please** contact the sales department at http://www.qtsoftware.com/contact.** $QT_END_LICENSE$******************************************************************************/#include "splashitem.h"#include <QtGui/QtGui>
SplashItem::SplashItem(QGraphicsItem *parent)
: QGraphicsWidget(parent)
{
opacity = 1.0;
timeLine = newQTimeLine(350);
timeLine->setCurveShape(QTimeLine::EaseInCurve);
connect(timeLine, SIGNAL(valueChanged(qreal)), this, SLOT(setValue(qreal)));
text = tr("Welcome to the Pad Navigator Example. You can use the"" keyboard arrows to navigate the icons, and press enter"" to activate an item. Please press any key to continue.");
resize(400, 175);
}
00062voidSplashItem::paint(QPainter *painter, constQStyleOptionGraphicsItem *, QWidget *)
{
painter->setOpacity(opacity);
painter->setPen(QPen(Qt::black, 2));
painter->setBrush(QColor(245, 245, 255, 220));
painter->setClipRect(rect());
painter->drawRoundRect(3, -100 + 3, 400 - 6, 250 - 6);
QRectF textRect = rect().adjusted(10, 10, -10, -10);
int flags = Qt::AlignTop | Qt::AlignLeft | Qt::TextWordWrap;
QFontfont;
font.setPixelSize(18);
painter->setPen(Qt::black);
painter->setFont(font);
painter->drawText(textRect, flags, text);
}
void SplashItem::keyPressEvent(QKeyEvent * /* event */)
{
if (timeLine->state() == QTimeLine::NotRunning)
timeLine->start();
}
void SplashItem::setValue(qreal value)
{
opacity = 1 - value;
setPos(x(), scene()->sceneRect().top() - rect().height() * value);
if (value == 1)
hide();
}